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[Birth weights of singleton neonates of 14 Chinese ethnic groups in 11 cities of China]
Xiao-Yun Huang1, Yuan-Fang Zhu1, Hui-Long Liu1
1Maternal and Child Health Care Hospital, Bao'an District of Shenzhen, Shenzhen, Guangdong 518102, China.
Insights
This study developed birth weight percentile curves for Han and Zhuang neonates and determined average birth weights for 14 Chinese ethnic groups. These findings offer crucial references for assessing neonatal intrauterine growth across diverse Chinese populations.
Area of Science:
- Neonatal growth and development
- Anthropometry
- Public health
Context:
- Birth weight is a critical indicator of neonatal health and development.
- Existing birth weight references may not accurately represent diverse ethnic populations in China.
- Standardized growth charts are essential for accurate intrauterine growth assessment.
Purpose:
- To establish birth weight percentile curves for Han and Zhuang neonates (26-41 weeks gestation).
- To determine mean birth weights for full-term neonates across 14 Chinese ethnic groups.
- To provide updated, ethnicity-specific references for neonatal growth evaluation.
Summary:
- Birth weight percentile curves (3rd-97th) were developed for Han (26-41 weeks) and Zhuang (28-41 weeks) neonates using the Lambda-Mu-Sigma (LMS) method.
- Mean birth weights and standard deviations were calculated for full-term neonates from 14 ethnic groups, including Li, Mulao, Zhuang, Yao, Dong, Miao, Han, Buyi, Mongolian, Tujia, Yi, Hui, Man, and Korean.
- Han neonates exhibited higher birth weight curves than Zhuang neonates, and the Li ethnic group had the lowest mean birth weight.
Impact:
- Provides essential, ethnicity-specific reference data for healthcare professionals in China.
- Facilitates more accurate identification of intrauterine growth restriction and macrosomia.
- Supports improved prenatal care and public health strategies for neonatal well-being.
Objectives:
To develop the birth weight curves of the Chinese Han (26-41 weeks of gestation) and Zhuang (28-41 weeks of gestation) singleton neonates in 11 cities of China, as well as the birth weight means of full-term neonates of 14 Chinese ethnic groups.
Methods:
The live singleton neonates who were born in 11 maternal and child health care hospitals from 11 cities of China between January 2017 and December 2020 were classified according to the mother's ethnic group. Birth weight means were calculated for the full-term neonates of each ethnic group. For the Han and Zhuang singleton neonates with a large sample size, the Lambda-Mu-Sigma (LMS) method was used to establish the birth weight percentile curves of the Han and Zhuang singleton neonates with different gestational ages.
Results:
A total of 105 365 live singleton neonates were included, among whom the Han neonates had the highest number of 84 851 (26-41 weeks of gestation), followed by the Zhuang neonates (12 803 neonates with a gestational age of 28-41 weeks). The neonates of the other Chinese ethnic groups enrolled were live full-term singleton neonates, with a sample size of more than 100 neonates for each ethnic group. The 3rd-97th percentile curves of birth weight were established for the Han singleton neonates with a gestational age of 26-41 weeks and the Zhuang singleton neonates with a gestational age of 28-41 weeks. The birth weight curves of the Han singleton neonates at each gestational age were higher than those of the Zhuang singleton neonates. Birth weight means (3 199-3 499 g) and standard deviations were determined for 14 Chinese ethnic groups, i.e., Li, Mulao, Zhuang, Yao, Dong, Miao, Han, Buyi, Mongolian, Tujia, Yi, Hui, Man, and Korean ethnic groups. The Li ethnic group had the lowest birth weight, followed by the Mulao, Zhuang, Yao, Dong, Miao, Han, Buyi, Mongolian, Tujia, Yi, Hui, Man, and Korean ethnic groups.
Conclusions:
The 3rd-97th percentile curves of birth weight are developed for the Han (26-41 weeks of gestation) and Zhuang (28-41 weeks of gestation) singleton neonates in 11 cities of China, and birth weight means are determined for the full-term neonates of 14 Chinese ethnic groups in 11 cities of China, which provides a reference for evaluating the intrauterine growth of neonates in these ethnic groups.
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